Anatomical snuff box

Question 1

Borders of the anatomical snuff box

Answer 1

Ulnar (medial) border: Tendon of the extensor pollicis longus.

Radial (lateral) border: Tendons of the abductor pollicis longus and extensor pollicis brevis.

Proximal border: Styloid process of the radius.

Floor: Carpal bones; scaphoid and trapezium.

Roof: Skin.

Question 2

Contents of the anatomical snuff box

Answer 2

Radial artery.

Radial nerve.

Question 3

Clinical significance of the anatomical snuff box

Answer 3

Palpation of radial artery.

Pain here is scaphoid bone if broken.